【作 者】：
张缨斌，陈孝然，胡小勇
【关 键 词 】：
同伴对话反馈； 协作学习分析； 行为演变模式； 沟通能力； 协作能力
【栏 目】：
课程与教学
【中文摘要】：
同伴对话反馈在协作学习中对促进学生高阶能力的发展具有重要潜力，但现有研究聚焦于对话反馈的平均效应，忽视了其在不同学生群体中的差异影响。为此，研究面向大学生群体构建、实施并优化了支持协作学习的同伴对话反馈策略，并基于个体和小组的行为数据开展个体特征研究挖掘行为演变模式，进一步解构策略在促进沟通与协作能力发展方面的异质效应。研究发现：（1）个体对话反馈行为呈现搭便车、间歇性投入、适应性贡献三种演变模式，策略对沟通能力的提升效应存在模式间的异质性；（2）小组对话反馈行为呈现由浅入深、由深返浅、稳定深层三种结构演变模式，策略对沟通能力的提升效应存在模式间的异质性；（3）学生协作能力显著提升，与个体和小组的行为演变模式均无关联。该研究为协作学习中的同伴对话反馈策略、行为演变模式和促进学生沟通与协作能力发展等提供了参考和改进建议。
【英文摘要】：
Peer dialogic feedback in collaborative learning has an important potential for promoting the development of students' higher-order competencies, but existing studies focus on the average effect of dialogic feedback and neglect its differential impacts in different student groups. To this end, the study constructed, implemented, and optimized peer dialogic feedback strategies to support collaborative learning among university students. And based on individual and group behavioral data, the study investigated individual characteristics to uncover behavioral evolution patterns and further deconstructed the heterogeneous effects of these strategies in facilitating the development of communication and collaborative skills. It is found that individual dialogic feedback behaviors exhibit three evolution patterns: free-riding, intermittent engagement, and adaptive contribution, and there is inter-modal heterogeneity in the enhancement effect of strategies on communication skills. Group dialogic feedback behaviors display three structural evolution patterns: from the shallower to the deeper, from the deeper to the shallower, and the stable deep pattern, and there is inter-modal heterogeneity in the enhancement effect of strategies on communication skills. Students' collaborative skills are significantly improved, yet this improvement shows no correlation with either individual or group behavioral evolution patterns. This study provides references and suggestions for improvement of peer dialogic feedback strategies, behavioral evolution patterns, and promotion of students' communication and collaborative skills in collaborative learning.